<template>
  <div class="person">
    <h2>当前求和为:{{ sum }}</h2>
    <button @click="add">点我sum+1</button>
  </div>
</template>

<script lang="ts" setup name="Person">
  import {
    ref,
    onBeforeMount,
    onMounted,
    onUpdated,
    onBeforeUpdate,
    onBeforeUnmount,
    onUnmounted,
  } from "vue";

  //数据
  let sum = ref(0);

  //方法
  function add() {
    sum.value += 1;
  }

  //创建
  console.log("创建");
  //挂载前
  onBeforeMount(() => {
    console.log("挂载前");
  });
  //挂载完毕
  onMounted(() => {
    console.log("子---挂载完毕");
  });
  //更新前
  onBeforeUpdate(() => {
    console.log("更新前");
  });
  //更新完毕
  onUpdated(() => {
    console.log("更新完毕");
  });
  //卸载前
  onBeforeUnmount(() => {
    console.log("卸载前");
  });
  //卸载完毕
  onUnmounted(() => {
    console.log("卸载完毕");
  });
</script>

<style scoped>
  .person {
    background-color: aqua;
    box-shadow: 0 0 10px;
    border-radius: 10px;
    padding: 20px;
  }

  button {
    margin-left: 5px;
    margin-right: 5px;
  }
</style>
